Talented but unlucky programmer Bo Ni is convinced that her bad energy harms others - people around her often encounter failures and injuries. After the death of her parents, the girl takes on the responsibility of caring for her younger sister. When her sister gets into an accident and falls into a coma, Bo Ni turns to a shaman for help and learns that she can fix everything - to lift the curse, she must spend a night with a man who was born under the lucky sign of the Tiger. The heroine's choice falls on Su Ho - the director of a game development company and her new boss.